Warner Electric Ultrasonic Sensors with Solid State Relay Output - Manual (Page 3)

Ultrasonic Sensors
Op er a tion and Set-Up
Proximity Sensing
Proximity detection is the detection of an object at
a set distance. The sensing range is controlled by
the “Range Control” potentiometer. Any object
within the desired range is detected while objects
beyond the set range are ignored. The sensing
dis tance is dependent upon the sen sor chosen,
40" or 80".
In the proximity mode of operation, the hysteresis
potentiometer must be turned to 'off' by turning
the pot counterclockwise.
The sensor is also fitted with a hysteresis control
potentiometer. This control allows you to adjust
the turn off point while the detection potentiometer
sets the “turn on” point.
(Example: Range pot set for 10", hysteresis pot
set for 20". With these settings the sensor will
de tect when the target reaches 10" and stays on
as the target moves away to 20".) This hysteresis
can be adjusted from .5" to 40" from the detect
point with the 40" sensor and 1" to 80" with the
80" sensor.
Hysteresis Control
Beam Spread vs. Target Distance
1.5 Beam Diameter (in.) 2.0 3.5 4.5 5.0 6.5 8.0 8.5 9.0 9.0
4 0
Distance from Sensor (in.)
6 8 10 12 16 20 24 28 30
4.5 Beam Diameter (in.) 8.0 10.0 13.0 14.0 14.5 14.5
10 0
Distance from Sensor (in.)
20 30 40 50 60 72
–8 4" to 40"
+8
–10 8" to 80"
+10
Allowable Angle of Tilt
40"
80" 4"
80"
40" Range
80" Range
Adjustable Detection Point
Proximity Sensing
Target
Target
4" to 40" or 8" to 80"
Hysteresis Control
Adjustable
Turn-Off Point Adjustable
Detection Point
(dependent upon
sensors range)